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Commit d7cdc9e8 authored by Paul Mundt's avatar Paul Mundt
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sh: ioremap() overhaul.



ioremap() overhaul. Add support for transparent PMB mapping, get rid of
p3_ioremap(), etc. Also drop ioremap() and iounmap() routines from the
machvec, as everyone can use the generic ioremap() API instead. For PCI
memory apertures and other special cases, use the pci_iomap() API, as
boards are already required to get the mapping right there.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 26ff6c11
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+99 −137
Original line number Diff line number Diff line
@@ -17,9 +17,9 @@

#include <linux/kernel.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/landisk/iodata_landisk.h>
#include <asm/addrspace.h>
#include <asm/io.h>

#include <linux/module.h>
#include <linux/pci.h>
@@ -42,10 +42,6 @@ extern void *area6_io_base; /* Area 6 I/O Base address */

#define PCI_IOMAP(adr)	(PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK))

#define maybebadio(name,port) \
  printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \
	 #name, (port), (__u32) __builtin_return_address(0))

static inline void delay(void)
{
	ctrl_inw(0xa0000000);
@@ -66,7 +62,7 @@ static inline unsigned long port2adr(unsigned int port)
			return ((unsigned long)area6_io_base + PA_SIDE_OFFSET +
				((port - 0x170) << 1));
	else
		maybebadio(port2adr, (unsigned long)port);
		maybebadio((unsigned long)port);

	return port;
}
@@ -89,234 +85,200 @@ static inline unsigned long port2adr(unsigned int port)
 * should be way beyond the window, and is used  w/o translation for
 * compatibility.
 */
unsigned char landisk_inb(unsigned long port)
u8 landisk_inb(unsigned long port)
{
	if (PXSEG(port))
		return *(volatile unsigned char *)port;
		return ctrl_inb(port);
	else if (CHECK_SH7751_PCIIO(port))
		return *(volatile unsigned char *)PCI_IOMAP(port);
	else
		return (*(volatile unsigned short *)port2adr(port) & 0xff);
		return ctrl_inb(PCI_IOMAP(port));

	return ctrl_inw(port2adr(port)) & 0xff;
}

unsigned char landisk_inb_p(unsigned long port)
u8 landisk_inb_p(unsigned long port)
{
	unsigned char v;
	u8 v;

	if (PXSEG(port))
		v = *(volatile unsigned char *)port;
		v = ctrl_inb(port);
	else if (CHECK_SH7751_PCIIO(port))
		v = *(volatile unsigned char *)PCI_IOMAP(port);
		v = ctrl_inb(PCI_IOMAP(port));
	else
		v = (*(volatile unsigned short *)port2adr(port) & 0xff);
		v = ctrl_inw(port2adr(port)) & 0xff;

	delay();

	return v;
}

unsigned short landisk_inw(unsigned long port)
u16 landisk_inw(unsigned long port)
{
	if (PXSEG(port))
		return *(volatile unsigned short *)port;
		return ctrl_inw(port);
	else if (CHECK_SH7751_PCIIO(port))
		return *(volatile unsigned short *)PCI_IOMAP(port);
		return ctrl_inw(PCI_IOMAP(port));
	else
		maybebadio(inw, port);
		maybebadio(port);

	return 0;
}

unsigned int landisk_inl(unsigned long port)
u32 landisk_inl(unsigned long port)
{
	if (PXSEG(port))
		return *(volatile unsigned long *)port;
		return ctrl_inl(port);
	else if (CHECK_SH7751_PCIIO(port))
		return *(volatile unsigned long *)PCI_IOMAP(port);
		return ctrl_inl(PCI_IOMAP(port));
	else
		maybebadio(inl, port);
		maybebadio(port);

	return 0;
}

void landisk_outb(unsigned char value, unsigned long port)
void landisk_outb(u8 value, unsigned long port)
{

	if (PXSEG(port))
		*(volatile unsigned char *)port = value;
		ctrl_outb(value, port);
	else if (CHECK_SH7751_PCIIO(port))
		*(volatile unsigned char *)PCI_IOMAP(port) = value;
		ctrl_outb(value, PCI_IOMAP(port));
	else
		*(volatile unsigned short *)port2adr(port) = value;
		ctrl_outw(value, port2adr(port));
}

void landisk_outb_p(unsigned char value, unsigned long port)
void landisk_outb_p(u8 value, unsigned long port)
{
	if (PXSEG(port))
		*(volatile unsigned char *)port = value;
		ctrl_outb(value, port);
	else if (CHECK_SH7751_PCIIO(port))
		*(volatile unsigned char *)PCI_IOMAP(port) = value;
		ctrl_outb(value, PCI_IOMAP(port));
	else
		*(volatile unsigned short *)port2adr(port) = value;
		ctrl_outw(value, port2adr(port));
	delay();
}

void landisk_outw(unsigned short value, unsigned long port)
void landisk_outw(u16 value, unsigned long port)
{
	if (PXSEG(port))
		*(volatile unsigned short *)port = value;
		ctrl_outw(value, port);
	else if (CHECK_SH7751_PCIIO(port))
		*(volatile unsigned short *)PCI_IOMAP(port) = value;
		ctrl_outw(value, PCI_IOMAP(port));
	else
		maybebadio(outw, port);
		maybebadio(port);
}

void landisk_outl(unsigned int value, unsigned long port)
void landisk_outl(u32 value, unsigned long port)
{
	if (PXSEG(port))
		*(volatile unsigned long *)port = value;
		ctrl_outl(value, port);
	else if (CHECK_SH7751_PCIIO(port))
		*(volatile unsigned long *)PCI_IOMAP(port) = value;
		ctrl_outl(value, PCI_IOMAP(port));
	else
		maybebadio(outl, port);
		maybebadio(port);
}

void landisk_insb(unsigned long port, void *addr, unsigned long count)
void landisk_insb(unsigned long port, void *dst, unsigned long count)
{
	if (PXSEG(port))
        volatile u16 *p;
        u8 *buf = dst;

        if (PXSEG(port)) {
                while (count--)
			*((unsigned char *)addr)++ =
			    *(volatile unsigned char *)port;
	else if (CHECK_SH7751_PCIIO(port)) {
		volatile __u8 *bp = (__u8 *) PCI_IOMAP(port);
                        *buf++ = *(volatile u8 *)port;
	} else if (CHECK_SH7751_PCIIO(port)) {
                volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port);

                while (count--)
			*((volatile unsigned char *)addr)++ = *bp;
                        *buf++ = *bp;
	} else {
		volatile __u16 *p = (volatile unsigned short *)port2adr(port);

                p = (volatile u16 *)port2adr(port);
                while (count--)
			*((unsigned char *)addr)++ = *p;
                        *buf++ = *p & 0xff;
	}
}

void landisk_insw(unsigned long port, void *addr, unsigned long count)
void landisk_insw(unsigned long port, void *dst, unsigned long count)
{
	volatile __u16 *p;
        volatile u16 *p;
        u16 *buf = dst;

	if (PXSEG(port))
		p = (volatile unsigned short *)port;
		p = (volatile u16 *)port;
	else if (CHECK_SH7751_PCIIO(port))
		p = (volatile unsigned short *)PCI_IOMAP(port);
		p = (volatile u16 *)PCI_IOMAP(port);
	else
		p = (volatile unsigned short *)port2adr(port);
		p = (volatile u16 *)port2adr(port);
	while (count--)
		*((__u16 *) addr)++ = *p;
		*buf++ = *p;
}

void landisk_insl(unsigned long port, void *addr, unsigned long count)
void landisk_insl(unsigned long port, void *dst, unsigned long count)
{
        u32 *buf = dst;

	if (CHECK_SH7751_PCIIO(port)) {
		volatile __u32 *p = (__u32 *) PCI_IOMAP(port);
                volatile u32 *p = (volatile u32 *)PCI_IOMAP(port);

                while (count--)
			*((__u32 *) addr)++ = *p;
                        *buf++ = *p;
	} else
		maybebadio(insl, port);
		maybebadio(port);
}

void landisk_outsb(unsigned long port, const void *addr, unsigned long count)
void landisk_outsb(unsigned long port, const void *src, unsigned long count)
{
        volatile u16 *p;
        const u8 *buf = src;

	if (PXSEG(port))
                while (count--)
			*(volatile unsigned char *)port =
			    *((unsigned char *)addr)++;
                        ctrl_outb(*buf++, port);
	else if (CHECK_SH7751_PCIIO(port)) {
		volatile __u8 *bp = (__u8 *) PCI_IOMAP(port);
                volatile u8 *bp = (volatile u8 *)PCI_IOMAP(port);

                while (count--)
			*bp = *((volatile unsigned char *)addr)++;
                        *bp = *buf++;
	} else {
		volatile __u16 *p = (volatile unsigned short *)port2adr(port);

                p = (volatile u16 *)port2adr(port);
                while (count--)
			*p = *((unsigned char *)addr)++;
                        *p = *buf++;
	}
}

void landisk_outsw(unsigned long port, const void *addr, unsigned long count)
void landisk_outsw(unsigned long port, const void *src, unsigned long count)
{
	volatile __u16 *p;
        volatile u16 *p;
        const u16 *buf = src;

	if (PXSEG(port))
		p = (volatile unsigned short *)port;
                p = (volatile u16 *)port;
	else if (CHECK_SH7751_PCIIO(port))
		p = (volatile unsigned short *)PCI_IOMAP(port);
                p = (volatile u16 *)PCI_IOMAP(port);
	else
		p = (volatile unsigned short *)port2adr(port);
                p = (volatile u16 *)port2adr(port);

        while (count--)
		*p = *((__u16 *) addr)++;
                *p = *buf++;
}

void landisk_outsl(unsigned long port, const void *addr, unsigned long count)
void landisk_outsl(unsigned long port, const void *src, unsigned long count)
{
        const u32 *buf = src;

	if (CHECK_SH7751_PCIIO(port)) {
		volatile __u32 *p = (__u32 *) PCI_IOMAP(port);
                volatile u32 *p = (volatile u32 *)PCI_IOMAP(port);

                while (count--)
			*p = *((__u32 *) addr)++;
                        *p = *buf++;
	} else
		maybebadio(outsl, port);
}

/* For read/write calls, just copy generic (pass-thru); PCIMBR is  */
/* already set up.  For a larger memory space, these would need to */
/* reset PCIMBR as needed on a per-call basis...                   */

unsigned char landisk_readb(unsigned long addr)
{
	return *(volatile unsigned char *)addr;
}

unsigned short landisk_readw(unsigned long addr)
{
	return *(volatile unsigned short *)addr;
}

unsigned int landisk_readl(unsigned long addr)
{
	return *(volatile unsigned long *)addr;
}

void landisk_writeb(unsigned char b, unsigned long addr)
{
	*(volatile unsigned char *)addr = b;
}

void landisk_writew(unsigned short b, unsigned long addr)
{
	*(volatile unsigned short *)addr = b;
}

void landisk_writel(unsigned int b, unsigned long addr)
{
	*(volatile unsigned long *)addr = b;
}

void *landisk_ioremap(unsigned long offset, unsigned long size)
{
	if (offset >= 0xfd000000)
		return (void *)offset;
	else
		return (void *)P2SEGADDR(offset);
		maybebadio(port);
}

void landisk_iounmap(void *addr)
void __iomem *landisk_ioport_map(unsigned long port, unsigned int size)
{
}

/* Map ISA bus address to the real address. Only for PCMCIA.  */
        if (PXSEG(port))
                return (void __iomem *)port;
        else if (CHECK_SH7751_PCIIO(port))
                return (void __iomem *)PCI_IOMAP(port);

unsigned long landisk_isa_port2addr(unsigned long offset)
{
	return port2adr(offset);
        return (void __iomem *)port2adr(port);
}
+99 −138
Original line number Diff line number Diff line
/*
 * arch/sh/boards/landisk/setup.c
 *
 * Copyright (C) 2002 Paul Mundt
 *
 * May be copied or modified under the terms of the GNU General Public
 * License.  See linux/COPYING for more information.
 *
 * Setup code for an unknown machine (internal peripherials only)
 */
/*
 * linux/arch/sh/kernel/setup_landisk.c
 *
 * Copyright (C) 2000 Kazumoto Kojima
 * Copyright (C) 2002 Paul Mundt
 *
 * I-O DATA Device, Inc. LANDISK Support.
 *
 * Modified for LANDISK by
 * Atom Create Engineering Co., Ltd. 2002.
 */
/*
 *
 * modifed by kogiidena
 * 2005.09.16
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */

#include <linux/config.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/pm.h>

#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/pci.h>

#include <linux/mm.h>
#include <asm/machvec.h>
#include <asm/rtc.h>
#include <asm/machvec_init.h>
#include <asm/io.h>
#include <asm/landisk/iodata_landisk.h>
#include <asm/landisk/io.h>

#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <asm/io.h>

extern void (*board_time_init) (void);
void landisk_time_init(void);
extern void init_landisk_IRQ(void);
void init_landisk_IRQ(void);

int landisk_ledparam;
int landisk_buzzerparam;
int landisk_arch;

/* defined in mm/ioremap.c */
extern void *p3_ioremap(unsigned long phys_addr, unsigned long size,
			unsigned long flags);
/* cycle the led's in the clasic knightrider/sun pattern */
static void heartbeat_landisk(void)
{
	static unsigned int cnt = 0, blink = 0x00, period = 25;
        volatile u8 *p = (volatile u8 *)PA_LED;
	char data;

        if ((landisk_ledparam & 0x080) == 0)
		return;

	cnt += 1;

        if (cnt < period)
		return;

	cnt = 0;
	blink++;

	data = (blink & 0x01) ? (landisk_ledparam >> 16) : 0;
	data |= (blink & 0x02) ? (landisk_ledparam >> 8) : 0;
	data |= landisk_ledparam;

	/* buzzer */
	if (landisk_buzzerparam & 0x1) {
		data |= 0x80;
	} else {
		data &= 0x7f;
	}
	*p = data;

        if (((landisk_ledparam & 0x007f7f00) == 0) &&
             (landisk_buzzerparam == 0))
		landisk_ledparam &= (~0x0080);

	landisk_buzzerparam >>= 1;
}

/*
 * Initialize the board
 * The Machine Vector
 */
struct sh_machine_vector mv_landisk __initmv = {
	.mv_nr_irqs = 72,
	.mv_inb = landisk_inb,
	.mv_inw = landisk_inw,
	.mv_inl = landisk_inl,
	.mv_outb = landisk_outb,
	.mv_outw = landisk_outw,
	.mv_outl = landisk_outl,
	.mv_inb_p = landisk_inb_p,
	.mv_inw_p = landisk_inw,
	.mv_inl_p = landisk_inl,
	.mv_outb_p = landisk_outb_p,
	.mv_outw_p = landisk_outw,
	.mv_outl_p = landisk_outl,
	.mv_insb = landisk_insb,
	.mv_insw = landisk_insw,
	.mv_insl = landisk_insl,
	.mv_outsb = landisk_outsb,
	.mv_outsw = landisk_outsw,
	.mv_outsl = landisk_outsl,
        .mv_ioport_map = landisk_ioport_map,
	.mv_init_irq = init_landisk_IRQ,
#ifdef CONFIG_HEARTBEAT
	.mv_heartbeat = heartbeat_landisk,
#endif
};
ALIAS_MV(landisk)

const char *get_system_type(void)
{
@@ -68,41 +110,42 @@ static void landisk_power_off(void)
        ctrl_outb(0x01, PA_SHUTDOWN);
}

void check_usl5p(void)
static void check_usl5p(void)
{
	volatile unsigned char *p = (volatile unsigned char *)PA_LED;
	unsigned char tmp1, tmp2;
        volatile u8 *p = (volatile u8 *)PA_LED;
        u8 tmp1, tmp2;

        tmp1 = *p;
        *p = 0x40;
        tmp2 = *p;
        *p = tmp1;
	landisk_arch = (tmp2 == 0x40) ? 1 : 0;
	if (landisk_arch == 1) {	/* arch == usl-5p */

        landisk_arch = (tmp2 == 0x40);
        if (landisk_arch == 1) {
                /* arch == usl-5p */
                landisk_ledparam = 0x00000380;
                landisk_ledparam |= (tmp1 & 0x07c);
	} else {                        /* arch == landisk */
        } else {
                /* arch == landisk */
                landisk_ledparam = 0x02000180;
                landisk_ledparam |= 0x04;
        }
	return;
}

void __init platform_setup(void)
{

        landisk_buzzerparam = 0;
        check_usl5p();

        printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n");
        board_time_init = landisk_time_init;
        pm_power_off = landisk_power_off;

}

void *area5_io_base;
void *area6_io_base;

int __init cf_init(void)
static int __init landisk_cf_init(void)
{
	pgprot_t prot;
	unsigned long paddrbase, psize;
@@ -133,86 +176,4 @@ int __init cf_init(void)
	return 0;
}

__initcall(cf_init);

#include <linux/sched.h>

/* Cycle the LED's in the clasic knightrider/Sun pattern */

void heartbeat_landisk(void)
{
	static unsigned int cnt = 0, blink = 0x00, period = 25;
	volatile unsigned char *p = (volatile unsigned char *)PA_LED;
	char data;

	if ((landisk_ledparam & 0x080) == 0) {
		return;
	}
	cnt += 1;
	if (cnt < period) {
		return;
	}
	cnt = 0;
	blink++;

	data = (blink & 0x01) ? (landisk_ledparam >> 16) : 0;
	data |= (blink & 0x02) ? (landisk_ledparam >> 8) : 0;
	data |= landisk_ledparam;

	/* buzzer */
	if (landisk_buzzerparam & 0x1) {
		data |= 0x80;
	} else {
		data &= 0x7f;
	}
	*p = data;

	if (((landisk_ledparam & 0x007f7f00) == 0)
	    && (landisk_buzzerparam == 0)) {
		landisk_ledparam &= (~0x0080);
	}
	landisk_buzzerparam >>= 1;
}

/*
 * The Machine Vector
 */

struct sh_machine_vector mv_landisk __initmv = {
	.mv_nr_irqs = 72,
	.mv_inb = landisk_inb,
	.mv_inw = landisk_inw,
	.mv_inl = landisk_inl,
	.mv_outb = landisk_outb,
	.mv_outw = landisk_outw,
	.mv_outl = landisk_outl,
	.mv_inb_p = landisk_inb_p,
	.mv_inw_p = landisk_inw,
	.mv_inl_p = landisk_inl,
	.mv_outb_p = landisk_outb_p,
	.mv_outw_p = landisk_outw,
	.mv_outl_p = landisk_outl,
	.mv_insb = landisk_insb,
	.mv_insw = landisk_insw,
	.mv_insl = landisk_insl,
	.mv_outsb = landisk_outsb,
	.mv_outsw = landisk_outsw,
	.mv_outsl = landisk_outsl,
	.mv_readb = landisk_readb,
	.mv_readw = landisk_readw,
	.mv_readl = landisk_readl,
	.mv_writeb = landisk_writeb,
	.mv_writew = landisk_writew,
	.mv_writel = landisk_writel,
	.mv_ioremap = landisk_ioremap,
	.mv_iounmap = landisk_iounmap,
	.mv_isa_port2addr = landisk_isa_port2addr,
	.mv_init_irq = init_landisk_IRQ,

#ifdef CONFIG_HEARTBEAT
	.mv_heartbeat = heartbeat_landisk,
#endif

};

ALIAS_MV(landisk)
__initcall(landisk_cf_init);
+0 −9
Original line number Diff line number Diff line
@@ -294,15 +294,6 @@ void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count
		maybebadio(outsl, port);
}

void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size)
{
	if (offset >= 0xfd000000)
		return (void *)offset;
	else
		return (void *)P2SEGADDR(offset);
}
EXPORT_SYMBOL(hs7751rvoip_ioremap);

unsigned long hs7751rvoip_isa_port2addr(unsigned long offset)
{
	return port2adr(offset);
+0 −1
Original line number Diff line number Diff line
@@ -60,7 +60,6 @@ struct sh_machine_vector mv_hs7751rvoip __initmv = {
	.mv_outsw		= hs7751rvoip_outsw,
	.mv_outsl		= hs7751rvoip_outsl,

	.mv_ioremap		= hs7751rvoip_ioremap,
	.mv_isa_port2addr	= hs7751rvoip_isa_port2addr,
	.mv_init_irq		= hs7751rvoip_init_irq,
};
+0 −9
Original line number Diff line number Diff line
@@ -321,15 +321,6 @@ void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count)
		maybebadio(port);
}

void *rts7751r2d_ioremap(unsigned long offset, unsigned long size)
{
	if (offset >= 0xfd000000)
		return (void *)offset;
	else
		return (void *)P2SEGADDR(offset);
}
EXPORT_SYMBOL(rts7751r2d_ioremap);

unsigned long rts7751r2d_isa_port2addr(unsigned long offset)
{
	return port2adr(offset);
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